Kadkam Cocr is a non-precious chrome cobalt alloy milling block containing no nickel or beryllium, which is widely used as a cast partial denture alloy, suitable for porcelain fused to metal restoration and screw retained implants. The Kadkam Cocr block have good thermal shock resistance and high corrosion resistance, mill blank without carbon with excellent milling properties, with improved thermal conductivity characteristics and reduced hardness for a longer milling cutter service life, the microstructure is very homogeneous and can be used also for laser welding. 

1.Test medium and conditions: Volume fraction of 1% HCI solution, the temperature is constant at 37°C, 72 hours total immersion corrosion test.
2. Test result: in the solution after corrosion, residual solution of 1%HCL solution has no discoloration, alloy quality unchanged before and after corrosion test. 

Advantages:
◎Biocompatible (Nickel and Beryllium Free)
◎Soft and homogenous due to a unique heat treatment during production
◎High tensile strength
◎High-heat resistant
◎Less affected by heat 
◎Corrosion resistant
◎Compatible with most porcelain systems

◎No delayed dermal contact sensitization
◎No oral mucous membrane irritation
◎No chronic systemic toxicity
◎No acute systemic toxicity
◎No genetic toxicity

Chemical Composition:
Co       Cr        Mo        W         Others                                             
61%      26%       4.5%      6.5%        2%

Physical Properties:
◎Density:                              8.5 g/cm3 
◎Rockwell hardness:                    ≥25.8 HRC    350HV     286   285   340   300
◎Tensile strength:                     ≥630 MPa    637
◎CTE(20～500°C):                      14.3*10-6/K-1
◎Extension limit stress:               520 R 
◎Elastic modulus:                      approx.210 GPa        232     209 
◎Metal-ceramic bonding strength:       43.8～55.7 MPa
◎Elongation:                           4.3%     14.7    10
◎Melting point:                        1380

Indications: Crowns & Bridges, Implant abutments/Screws, Implant bars, Inlays & Onlays